16589081 has 2 divisors, whose sum is σ = 16589082. Its totient is φ = 16589080.

The previous prime is 16589057. The next prime is 16589087. The reversal of 16589081 is 18098561.

16589081 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10995856 + 5593225 = 3316^2 + 2365^2 .

It is a cyclic number.

It is not a de Polignac number, because 16589081 - 2¹⁴ = 16572697 is a prime.

It is a super-2 number, since 2×16589081² = 550395216849122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16589087) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8294540 + 8294541.

It is an arithmetic number, because the mean of its divisors is an integer number (8294541).

Almost surely, 2^16589081 is an apocalyptic number.

It is an amenable number.

16589081 is a deficient number, since it is larger than the sum of its proper divisors (1).

16589081 is an equidigital number, since it uses as much as digits as its factorization.

16589081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 16589081 is about 4072.9695554963. The cubic root of 16589081 is about 255.0394966374.

The spelling of 16589081 in words is "sixteen million, five hundred eighty-nine thousand, eighty-one".